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Reference type: Journal
Authors: Zhang HJ, Chen QD, Shen XH
Article Title: Synthesis of a New Ionic Imprinted Polymer for the Adsorption of Uranium from (NH4)4[UO2(CO3)3] Solution.
Publication date: 2014
Journal: Acta Scientiarum Naturalium Universitatis Pekinensis
Volume: 50
Issue: (5)
Page numbers: 960-964.
Alternative URL: http://xbna.pku.edu.cn/en/view.xbna?id=3050

Abstract: The ionic imprinted polymer (IIP) of uranyl ion (UO22+) was synthesized by the formation of binary complexes of UO22+ with 1,3-dioxo-1,3-diphenylpropan-2-yl methacrylate (DBM-MAA) as functional monomer followed by thermal copolymerization with ethylene glycol dimethacrylate (EGDMA) as cross-linking monomer in the presence of 2,2'-azobisisobutyronitrile (AIBN) as initiator and 1,4-dioxane as porogenic solvent. 50 mmol/L HCl solution was used to leach out UO22+ ions from the polymer. The IIP formed with 1:3 molar ratio of UO22+ to DBM-MAA showed better enrichment of uranyl ion from dilute aqueous solution than others and hence was chosen for detailed studies. The maximum adsorption capaci(NH4)4[UO2(CO3)3]sub>)3] solution was 9.4 mg U/g. The prepared IIP could selectively separate UO22+ from other metal ions, such as Li+, Na+, K+ and Rb+.
Template and target information: uranium, uranyl ion, UO22+


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